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Accumulated Other Comprehensive Loss (Tables) | 12 Months Ended
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Sep. 30, 2021
Accumulated Other Comprehensive Loss |
Schedule of Accumulated Other Comprehensive Income (Loss) | The components of accumulated other comprehensive loss are as follows:
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Effect of |  | ​ | ​ |  | Accumulated
​ | ​ | Foreign | ​ | Minimum | ​ | Other
​ | ​ | Currency | ​ | Pension | ​ | Comprehensive
​ | ​ | Translation | ​ | Liability | ​ | Loss
​ | ​ | (Amounts in thousands)
Balance as of September 30, 2019 | ​ | $ | (5,111) | ​ | $ | (7,482) | ​ | $ | (12,593)
Change in period | ​ |  | 415 | ​ |  | 150 | ​ |  | 565
Tax effect of change in period | ​ |  | — | ​ |  | 33 | ​ |  | 33
Balance as of September 30, 2020 | ​ | $ | (4,696) | ​ | $ | (7,299) | ​ | $ | (11,995)
Change in period | ​ |  | 646 | ​ |  | 1,972 | ​ |  | 2,618
Tax effect of change in period | ​ |  | — | ​ |  | (71) | ​ |  | (71)
Balance as of September 30, 2021 | ​ | $ | (4,050) | ​ | $ | (5,398) | ​ | $ | (9,448)

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